Q!

mumfish1224

If w and c are integers, is w > 0?

(1)     w + c > 50

(2)     c >48

为什么不是B？

Q30:

Joanna bought only $0.15 stamps and $0.29 stamps.  How many $0.15 stamps did she buy?

(1)     She bought $4.40 worth of stamps.

(2)     She bought an equal number of $0.15 stamps and $0.29 stamps.

为什么答案是C不是（1）是如何求出的 呢？

Q29:

June 25, 1982, fell on a Friday.  On which day of the week did June 25, 1987, fall?  (Note: 1984 was a leap year.)

请问除了推算法，有其他相关解法吗？

Q32:

For a convention, a hotel charges a daily room rate of $120 for 1 person and x dollars for each additional person.  What is the charge for each additional person?

(1)     The daily cost per person for 4 people sharing the cost of a room equally is $45.

(2)   The daily cost per person for 2 people sharing the cost of a room equally is $25 more than the corresponding cost for 4 people.

                  

（1）如果用（120+3X）/4=45  不是可求出吗？

 答案为什么是B 呢？？

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mumfish1224

If w and c are integers, is w > 0?

(1)     w + c > 50

(2)     c >48

为什么不是B？

B单独和w没关系

其实想问的是为什么答案是E不是C？？不好意思啊？！